why would my panel lights indicaor stays on even though all my lights are workin on 1990 Toyota Camry

i have replaced all lights and checked all fuses and and all is well. yet my lights indicator is still on on my dash board. what can i do or what might be the problem?

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
what indicator please be more clear